Welcome to the forum! :)
Well, what sort of setup do you have for him? Food? Equipment? Do you have a heater?
There's a stickied topic at the top of the betta Care section that'll tell all you need to know about what to start with. Of course, you can always ask questions too! ;)
Puck (Yellow koi HM king) / Scar (White HM) / Salt 'n Pepper (Silver HMPK) / 'That fish' (Copper butterfly HM) / No name (White DT) / No name 2 (Turquoise/white marble HM) / No name 3 (Lilac HM)
Bo Peep (Cambodian VT) / Goldilocks (Yellow VT) / Joie de Vivre (Multicolour VT) / Lil' Peep (Blue VT) / No name (Dalmatian VT) / No name 2